Cited by 130Nanomaterials and Printing TechnologiesCarbon Nanotubes in CompositesThin-Film Transistor Technologies

A fully roll-to-roll gravure-printed carbon nanotube-based active matrix for multi-touch sensors

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Lee, Wookyu, Koo, Hyunmo, Sun, Junfeng, Noh, Jinsoo, Kwon, Kye-Si, Yeom, Chiseon, Choi, Younchang, Chen, Kevin +2 more·2015·Scientific Reports

Abstract

Roll-to-roll (R2R) printing has been pursued as a commercially viable high-throughput technology to manufacture flexible, disposable and inexpensive printed electronic devices. However, in recent years, pessimism has prevailed because of the barriers faced when attempting to fabricate and integrate thin film transistors (TFTs) using an R2R printing method. In this paper, we report 20 × 20 active matrices (AMs) based on single-walled carbon nanotubes (SWCNTs) with a resolution of 9.3 points per inch (ppi) resolution, obtained using a fully R2R gravure printing process. By using SWCNTs as the semiconducting layer and poly(ethylene terephthalate) (PET) as the substrate, we have obtained a device yield above 98% and extracted the key scalability factors required for a feasible R2R gravure manufacturing process. Multi-touch sensor arrays were achieved by laminating a pressure sensitive rubber onto the SWCNT-TFT AM. This R2R gravure printing system overcomes the barriers associated with the registration accuracy of printing each layer and the variation of the threshold voltage (V th). By overcoming these barriers, the R2R gravure printing method can be viable as an advanced manufacturing technology, thus enabling the high-throughput production of flexible, disposable and human-interactive cutting-edge electronic devices based on SWCNT-TFT AMs.

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  • In nanomaterial-enabled active matrix pressure sensing, nanomaterials such as Ge/Si NWs or semiconducting CNTs can be employed as the channel material for the transistor.

    “In nanomaterial-enabled active matrix pressure sensing, nanomaterials such as Ge/Si NWs [85] or semiconducting CNTs, [63,64,84] can be employed as the channel material for the transistor.”

    From Nanomaterial-Enabled Wearable Sensors for Healthcare (2018) · cites this paper as [63]

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Authors
Lee, W., Koo, H., Sun, J., Noh, J., Kwon, K.-S., Yeom, C., Choi, Y., Chen, K., Javey, A., & Cho, G.
Affiliations
  • Sunchon National University (KR)
  • Soonchunhyang University (KR)
  • University of California, Berkeley (US)
Corresponding author
  • Javey, Ali
  • Cho, Gyoujin
Venue
Scientific Reports
Published
2015-12-04
Volume
5
Issue
1
Pages
17707-17707
ISSN
2045-2322 (ISSN-L)
OpenAlex
W2187383317
Cited by
130
References
21
Citations by year
2026: 5 · 2025: 14 · 2024: 6 · 2023: 13 · 2022: 12 · 2021: 10 · 2020: 16 · 2019: 16 · 2018: 19 · 2017: 7 · 2016: 12
FWCI
6.11
Type
journal article
Language
en
Open access
Locations
  • Scientific Reports (publishedVersion, cc-by)
  • Europe PMC (PubMed Central) (publishedVersion, cc-by)
  • PubMed Central (publishedVersion, cc-by)
  • PubMed (publishedVersion)
  • eScholarship (California Digital Library) (submittedVersion)
Funders
Sunchon National University
Topics
  • Physical Sciences › Engineering › Electrical and Electronic Engineering › Nanomaterials and Printing Technologies
  • Physical Sciences › Materials Science › Materials Chemistry › Carbon Nanotubes in Composites
  • Physical Sciences › Engineering › Electrical and Electronic Engineering › Thin-Film Transistor Technologies
Keywords
roll-to-roll printing, gravure printing, single-walled carbon nanotubes, active matrix, thin-film transistors, flexible electronics, printed electronics, polyethylene terephthalate substrate, threshold voltage variation, industrial scalability
MeSH terms
Electronics, Medical, Humans, Polyethylene Terephthalates, Printing, Semiconductors, Transistors, Electronic, User-Computer Interface, Nanotubes, Carbon

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